Bicycle



No. a|2,oo7.. Patented on. u, lass.

r. x. ATZBERGER.

BICYCLE.

{Application fiXed Apr. 18, 1898.)

(N0 Model.)

w: NORRIS Pz'izns (20., wow-urns. WASHINGTON. D. c,

UNITED STATES PATENT OFFICE.

FRANZ X. ATZBERGER, OF LAKEWOOD, NEIV JERSEY.

BICYCLE.

SPECIFICATION forming part of Letters Patent No. 612,007, dated October 11, 1898.

Application filed April 1 8, 1 89 B.

To aZZ whom it may concern Be it known that I, FRANZ X. ATZBERGER, a citizen of the United States, and a resident ofLakewood,Ocean county, New Jersey, have invented certain new and useful Improvements in Bicycle-Brakes, of which the following is a specification.

This invention relates to an improved bicycle-brake which will be automatically applied on a downgrade and taken off on an upgrade.

In the accompanying drawings, Figure 1 is a side elevation of a bicycle-frame provided with my improved brake; Fig. 2, a cross-sec- .tion on line 2 2, Fig. 1; Fig. 3, a front view of a modification of the brake-lever; and Fig. 4, a side view, partly in section, of the same.

The brake-shoe a is applied to the rear wheel A and has a stem a sliding freely in a bracket a attached to the machine-frame. Abell-crank a connects stem at with the rear end of a rod 1), the forward end of which is by bell-crank b and link 19 connected to handle 0, pivotally supported by the machine-head. If the handle 0 is raised, the rod 1) will be drawn forward to apply the brake, while when the handle is depressed the brake will be taken off.

To provide for an automatic action of the brake, I pivot to the machine-frame B at d a lever d, which is at d likewise connected to rod 1), and which carries a weight 0 at its lower end. On ascending a grade the weight 6 will be tilted backward and will draw the bar I) along, so as to take off the brake-shoe,

$erial No, 677,934. (No model.)

while on descending a grade the weight will be tilted forward to apply the shoe.

It will be seen thatwhile the brake is always in full control of the rider it will act automatically when a dangerous grade is reached, thus adding greatly to the safety of the machine.

In Figs. 3 and 4 the brake-lever f is pivoted to the handle-bar f and turns with the same, so that it may always be held in the grasp of the rider. A circular collar f surrounding steering-tube f is connected to lever fby link J. A second circular collar g, surrounding steering-tube f above collar f is connected to the bell-crank b of brake-rod b by link g. If the brake-lever f is raised, the collar f will be lifted to lift collar g, and thus draw rod 1) forward to apply the brake, while when the brake-lever is released the brake will be taken 0E.

What I claim is In a bicycle-brake, the combination of a brake-shoe adapted to engage the rear wheel, with a handle, a rod for transmitting the motion of the handle to the brake-shoe, a lever pivoted to the machine-frame and the rod, and a weight suspended from said lever, substantially as specified.

Signed by me at Lakewood, New Jersey, this etth day of April, 1898.

FRANZ X. ATZBERGE'R.

Witnesses:

B. H. FIELDER, Jr., ALLUT. M. BRADSHAW. 

